A Cucumber is a widely cultivated, elongated, green-skinned fruit, commonly used as a vegetable in culinary applications due to its mild flavor and refreshing crunch. It typically has a cylindrical shape, though varieties can range from short and stout to long and slender. The skin can be smooth or ridged, and sometimes prickly, while the flesh is pale green to white, watery, and contains numerous small, edible seeds.

Cucumbers are known for their high water content, making them exceptionally hydrating. They have a subtle, clean, and slightly sweet flavor, often with a hint of bitterness depending on the variety. They are almost exclusively eaten raw, primarily in salads, sandwiches, and relishes, or pickled to make gherkins. In warm climates, like Malaysia, they are a popular addition to refreshing drinks and are often served alongside spicy dishes to provide a cooling contrast.